Antitheft identification marking



' Jan; 30,1923.

J. RECKLEFF ET AL.

' Mumba/Sys Patented Jan. 30, 1923.

nuire. s'rArss PATENT f JOHN nEoKLnrrk yAND WILLIAM nosnNBERs, on Nnw YORK, N.Y Y. l

ANTIrI-IEFT IDENTIFICATION MARKING.

Application led September 15, 1922.` Serial No. 5788,5310.

ToaZZ whom/trudy concern.' e

Be it known that we, JOHN lnoinnrr and WILLIAM ROSENBERG, citizensl of thellnited States, residing at 1.73 14th Street and 11.45

51st vStreet, respectively,'city of New York, inthe county `of Kings and State of Nennl articles such as automobiles fand the like for the purpose of identifying them nd pre` `venting theft.l

In marking automobiles it has been custonary to affix an identifying number to y some convenient part thereof, such as the `engine thereof, for example. `In practice,

howevergit has been found very easy for thieves `to remove these identifying numbers and to substitute others.`

' Various expediente have been proposed i `for insuringthe identification of an automoblile but these have notproved practical because they were usually too expensive ory symbols without.`lowering the strength of that part of the automobile to which the identifyingsylnbol or symbols are affixed.

Another Object of our invention is to de vise a method of identificationA and an ideni tifying means which shall be cheap and simple to use.

Another object of ourinvention is to pro-y` 'y vide an identifying means whichl cannot be` removed by means ofthe use of heat, grind*v y ing or the like.

v Other objects of our invention will be set forth `in the following description and drawings which illustrate` a` preferred embodiment thereof. n

Fig.` 1 isy a front elevation.

Fig. 2 :is a section on the line 2 2 of automobile. We prefer the use of asuit- P itself. f

`serted so as to indicate a series Ofnumbers,

ing numbers.

`able portion of the engine orv of some metal*` part connected to the engine and forming a necessary part of the automobile. Vrlowever, `our invention is not restricted to this.

A series of holes are formed in the portion;` P by-any suitable means. These holes may be formed in the process of manufacture of L this part P or they may be drilled'after the said part has beenmanufactured. After the holes `havel been thus. formed,V a series'of1 bushings 3 are inserted therein. lf the iden-l"vl *tifying mark or marks are vto be vplacedin a able soft brass which has a color different from the portion P. It is desirable to make the bushings 3 of amaterial whichyieldsfv more easily than the materialof the portion The tops of the bushings 3 can be made slightly tapered as illustrated in Fig. 3.

When thebushings have thus been in-` l pins 2 'are driven into thesaid bushings 3.

When the bushings 3 are made ofrela- `tively soft brassinserted in theholes formed` in cast iron body, we' prefer to make the f pins 2'of a very hard and strong steel. The pins 2 are preferably formed with points which are slightly tapered, and of diameter which is slightlygreater than the interior diameter of the bushings 3.k When the pins 2 are driven into the bushingsB, the said bushings are expandedv and theyare very powerfully compressed `against the interior walls yof the holes so that the said bushings are very `powerfully compressed between the interior walls of the said holes and the, exteriors of the pins 2.

Hence after the pins 2 have been driven into place and are flush with the surfaceof the portion P it impossible to pull them out. f

After the bushings 3 have been thus oOm-. pressed they are preferably as thin as possible and they clearly Aindicate the identify#` y We also prefer to form a margin l around the edgeof the said numbers. f

Since the pins 2 lare `made of a very hard-steel it is impossibleto remove them by grinding and the holes. in the portiOnP are furthermore made as deepas possible. Evenif part of ,the pins 2 and the bushings 3 is ground away the said bushings will always: indicate gthefeorreet" id entiying-Annmber. vThe action-fof heetisequellyineieetual for removing Jthese identifying. numbers thus formed@ 'Y l Fiirthermore7 Cheporaion P is not Weakened hy. the formation qo'gfghe holes,;therein because Jthe pinsy 2 ll these holes very tightly and even reinforce theporbion?.

. lt is obvious that en automobile een he very leasily, quickly kLind cheaplyv ven a peinianent-"identiiiying numherer numbers *hei-ving :i series of holes` jeherein, which een- 'sisrs' in plaeingihush-mgs into rthe seidfholes l Wh-iehere madeio e relatively yieldehlemeteria-l and then "'for'eing pins into lie seid bushings and eompressingthe seidbushngs between the interior walls oi the said holes and fthe.. said ypins.

.2. Anmethod'of identifying a metal ar- .tiele having a series of holes therein, which consists inl pleeingfeseries ei' bushings made of relatively yieldehie meei'iel into the said holes, seidhushings having e. Color different from; that of the materiel ino which theyv are pleeedVend-then forcing hard steel pins into the said bushings and compressing the said bushings between the interior .Walls of the seid holesy and he seid pins.

8. Ain erjiele havingI en identifying Symholvtherein, theloutline of the seid symbol .including e series ofholes, saidiholesphming bushings therein, and pinsloeated in the seid bushingsfsheseid bushings-,being compressed between Jche interior'wallloi Vthe seid holes and. thelse'id pins.

ln testimony whereof' We hereunto `aiiix'f our signeures.V v f `JGHN REGKLEFE f *.WILLXAM 'l ROSENBEBG. 

